<code implemented below is for well formed parenth...

# stackoverflow

[user]

code implemented below is for well formed parentheses, need explanation to complete recognize class for the last block of code
code implemented below is for well-formed parentheses, need an explanation to complete recognize for the last block of code.

A string is well formed with respect to parentheses if the parentheses are balanced. An example well formed string is

(a+b*(d+(e))-f)

A string that is not well formed is

(a+b*(d+(e-g))

One way to see that it is not well formed is to count up left parentheses (there are three of them) versus right parentheses (there are two of them). Since these counts are...